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教学内容:人教版数学五年级下册第18、19页。教学过程:一、开门见山,导入新课师:同学们,生活中有各种形状的物体,请同学们打开课本第18页,看到了哪些物体?它们都是什么形状的?找出形状是长方体或正方体的三种物体。学生回答后,教师用多媒体闪动上述物体的长方体轮廓,抽象出长方体的图形,让学生在脑海里对长方体形成表象。引导学生找一找生活中还有哪些物体的形状是长方体。师:现在我们就来进一步认识长方体。(板书课题)
Teaching content: PEP fifth grade, Volume 18,19. Teaching process: First, go straight to the point, the introduction of a new class teacher: Students, there are objects of various shapes in life, the students open the textbook on page 18, which objects are seen? What are the shape of them? Find out the shape is a rectangular parallelepiped Or cube three kinds of objects. After the students answered, the teacher used multimedia to flash the outline of the cuboid of the above object and abstract the cuboid figure so that the student could represent the cuboid in his head. Guide students to find what other objects in life are the shape of a rectangular parallelepiped. Teacher: Now we come to understand the cuboid. (Blackboard problem)